WALTER MOON JO (MD) – Cardiovascular Disease Physician, NPI 1043250004

WALTER MOON JO (MD) is a healthcare provider. based in N chelmsford, Massachusetts. specializing in CARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. 150611 (MA). The NPI Number for WALTER MOON JO (MD) is 1043250004

Main info

Male
33 Years Of Experience
Accepts Medicare Assignment
Name
WALTER MOON JO (MD)
NPI
1043250004
Phone
(978) 256-6607
Address
14 RESEARCH PL
Enumeration Date
7 June 2006
Last Update Date
29 March 2013

Doctor Profile

Medical School Name
TUFTS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
6174211000
Graduation Year
1993 (33 years ago)
PAC ID
9133195696
Group Practice PAC ID
4789588641
Professional Enrollment ID
I20040909000791
Address ID
MA022153904BO133XXAVEX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,398 CARDIOVASCULAR DISEASE (CARDIOLOGY) in MA

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Provider Addresses for WALTER MOON JO (MD)

  • 14, Research Place, Chelmsford, Middlesex County, Massachusetts, 01863, United States

    N CHELMSFORD, MA 018632412

    Phone: (978) 256-6607

    Fax: (978) 250-8189

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 7 Open Payments records for all available years, with a total value of $185.

Total Amount is formed as General ($185) + Research ($0) + Ownership ($0) = $185.

Last reported payment date: 2024-12-02 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($185).

Total Amount

$185

General + Research + Ownership

Payments

7

Total payment records

General Amount

$185

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-02

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-09-09

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040909000791ICardiovascular Disease (Cardiology)MATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
93010Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only1,3081,057$0
93000Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report1,1521,090$0
99214Established patient office or other outpatient visit, 30-39 minutes746580$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes369240$0
93306Ultrasound of heart with color-depicted blood flow, rate, direction and valve function304302$0
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Insurance plans in this area (ZIP 01863)

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Provider's Procedures

WALTER MOON JO (MD) performs procedures in CARDIOVASCULAR DISEASE (CARDIOLOGY). See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
CARDIOVASCULAR DISEASE (CARDIOLOGY)MA78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies6262
CARDIOVASCULAR DISEASE (CARDIOLOGY)MA93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report29802271
CARDIOVASCULAR DISEASE (CARDIOLOGY)MA93280Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report6040

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4789588641View full group profile
NameSpecialtyState
-MA
Family PracticeMA
D E R M A T O L O G YMA
Emergency MedicineMA
Internal Medicine, Cardiovascular Disease (Cardiology)MA
-MA
O B S T E T R I C S/ G Y N E C O L O G YMA
-MA
Internal MedicineMA
O T O L A R Y N G O L O G YMA

Reviews

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Frequently asked questions

What identifier follows WALTER MOON JO (MD) across health systems?
The NPI 1043250004 uniquely identifies WALTER MOON JO (MD) in U.S. healthcare data.
Is WALTER MOON JO (MD)'s NPI status active today?
Active status means WALTER MOON JO (MD)'s NPI record is not deactivated in the public file.
What type of care does WALTER MOON JO (MD) provide?
WALTER MOON JO (MD)'s profile centers on Cardiovascular Disease Physician. Clinical services aligned with this taxonomy classification.
Can patients visit WALTER MOON JO (MD) in N Chelmsford, Massachusetts?
For routing, start with N Chelmsford, Massachusetts for WALTER MOON JO (MD), then verify phone and hours locally.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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